... 1.Scupper design, no (seeper) because of rainwater 2.Blow Mould Stadium Seating 3.Floor mount,Riser mount,Simper mount 4 ... .Safe Shenzhen Plastic Blow Mould One Piece stadium seating arena seating chairs fixed chair ... etc.SpecificationsBackrest: No backrest, Use HDPE as raw material, adopt blow molding craft. Drainage: Scupper design, no (seeper) because of ...